A two-dimensional model of social representations

This paper reports a series of four experiments conducted to gain insight into students' social representations of the firm. The results suggested a possible revision of the central core theory. They showed that the central elements of the representation were treated differently by the subjects. More specifically, the notion of Profit and Hierarchy, both central, did not play the same role in the representation. The subjects were found to grant evaluative power to the notion of Profit but not to the notion of Hierarchy. This differentiation by evaluative potential was also found for two peripheral elements. These differences suggest that independently of their central or peripheral nature, the various elements of a representation can be placed along an evaluative continuum. By combining the evaluative dimension and the central or peripheral dimension of the elements, we obtain a two-dimensional model of representations which divides discourse and cognition into four fields.     

The influence of social comparison with less fortunate others on task performance: The role of gender motivations or appropriate norms

French male and female children performed a cognitive-perceptual task while anticipating or not public comparisons of their score with probably less fortunate others at a time when concerns about fitting in to social expectations were maximized. As predicted, boys performed better and girls poorer when social comparison was anticipated than when it was not. This suggested that task performance can depend on the compatibility of the social context of cognition with gender motivations or appropriate norms.     

Generalized Processing Tree Models: Jointly Modeling Discrete and Continuous Variables

Multinomial processing tree models assume that discrete cognitive states determine observed response frequencies. Generalized processing tree (GPT) models extend this conceptual framework to continuous variables such as response times, process-tracing measures, or neurophysiological variables. GPT models assume finite-mixture distributions, with weights determined by a processing tree structure, and continuous components modeled by parameterized distributions such as Gaussians with separate or shared parameters across states. We discuss identifiability, parameter estimation, model testing, a modeling syntax, and the improved precision of GPT estimates. Finally, a GPT version of the feature comparison model of semantic categorization is applied to computer-mouse trajectories.     

N. R. Hanson and von Uexküll: A Biosemiotic and Evolutionary Account of Theories

Journal for General Philosophy of Science - This paper proposes a biosemiotic conception of theories, as non-intentional organic theories, which is based on an analysis and comparison of...     

Internality attribution and intergroup relations

In two studies, subjects filled out a questionnaire requiring them to choose between internal and external explanations of desirable or undesirable events. They were also asked to fill out the same questionnaire from another person's point of view, either a member of the ingroup or a member of the outgroup. The first study used students as subjects and the events were about student life. The second study used employees for subjects and the events were about the working world. As predicted on the basis of internality norm theory, internal explanations were generally found to be chosen more often when the respondent or imagined respondent was said to be a worthy person. The internality scores were the highest for oneself and for the ingroup member, regardless of the desirability of the events; they were the lowest for the outgroup member. These internality attribution effects do not seem to stem from the well-known ingroup-favouring attributions (ultimate attribution error). Hence, the internality norm construct, irrespective of event desirability, provides a new pathway for exploring the evaluative effects of intergroup relations. © 1998 John Wiley & Sons, Ltd.     

Priors and payoffs in confidence judgments

Attention, Perception, & Psychophysics - Priors and payoffs are known to affect perceptual decision-making, but little is understood about how they influence confidence judgments. For optimal...     

Abstract Thinking Increases Support for Affirmative Action

Sex Roles - Affirmative action is the proactive process of using resources to ensure that people are not discriminated against based on their group membership, such as gender or ethnicity. It is an...     

Cognitive templates for religious concepts: cross-cultural evidence for recall of counter-intuitive representations

Presents results of free-recall experiments conducted in France, Gabon and Nepal, to test predictions of a cognitive model of religious concepts. The world over, these concepts include violations of conceptual expectations at the level of domain knowledge (e.g., about 'animal' or 'artifact' or 'person') rather than at the basic level. In five studies we used narratives to test the hypothesis that domain-level violations are recalled better than other conceptual associations. These studies used material constructed in the same way as religious concepts, but not used in religions familiar to the subjects. Experiments 1 and 2 confirmed a distinctiveness effect for such material. Experiment 3 shows that recall also depends on the possibility to generate inferences from violations of domain expectations. Replications in Gabon (Exp. 4) and Nepal (Exp. 5) showed that recall for domain-level violations is better than for violations of basic-level expectations. Overall sensitivity to violations is similar in different cultures and produces similar recall effects, despite differences in commitment to religious belief, in the range of local religious concepts or in their mode of transmission. However, differences between Gabon and Nepal results suggest that familiarity with some types of domain-level violations may paradoxically make other types more salient. These results suggest that recall effects may account for the recurrent features found in religious concepts from different cultures.     

Consolidation of Memory for Odor–Reward Association: β-Adrenergic Receptor Involvement in the Late Phase

Experimentally naive rats can learn rapidly to discriminate among three odors to obtain food reinforcement. After three massed trials, they show almost errorless performance. This task has proved to be useful in studying time-dependent postacquisition intracellular processes necessary for long-term memory. The present experiments evaluated the temporal dynamics of the role of β-noradrenergic receptors in long-term consolidation. Rats were implanted with intracerebroventricular cannulae and trained in a single session to find reinforcement in a hole in a sponge impregnated with a particular odor. Injections of the β-receptor antagonist timolol were made at 5 min, 1, 2, or 5 hr after training. Memory and relearning ability were evaluated 48 hr later. Rats treated with timolol 2 hr after training showed a memory deficit at the retention test, but were able to relearn the task normally. Injections at the earlier or later time points were ineffective. The results reinforce previous observations with systemic injections that β-noradrenergic receptors are involved in the late phase of memory consolidation and suggest a critical time window during which they are necessary. The time window is compatible with the current view that long-term memory depends on late involvement of the cAMP cascade leading to new protein synthesis necessary for synaptic reorganization.